Bell & Ross · Vintage

Strap for WW1 Chronographe Monopoussoir Heritage

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter45 mm
ReferenceBRWW1-MONO-HER/SCA
FamilyVintage
MovementLa Joux-Perret caliber 8201 MPC Hours, Minutes, Small Seconds | Chronograph, Monopoussoir
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Vintage BRWW1-MONO-HER/SCA

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Vintage BRWW1-MONO-HER/SCA, seen from the bench

The Bell & Ross Vintage BRWW1-MONO-HER/SCA is a 45 mm aviation chronograph featuring a monochromatic dial, decentered small seconds hand, and lume-filled indices. It houses the La Joux-Perret caliber 8201 MPC movement with 42-hour power reserve and single-pusher chronograph complication. The brushed stainless steel case develops a patina over time, while the anti-reflective sapphire crystal ensures legibility. The 18 mm lug width is historically characteristic of professional aviation chronographs, requiring precision engineering for perfect fit.

Frequently asked questions

What is the lug width of the Bell & Ross Vintage BRWW1-MONO-HER/SCA?

The lug width of the BRWW1-MONO-HER/SCA is 18.00 mm. This non-standard measurement requires specifically dimensioned straps to fit the case lugs without play or forcing. An 18 mm strap ensures perfect seating and preserves visual alignment between case and strap.

What is the best strap for the Bell & Ross Vintage BRWW1-MONO-HER/SCA?

Alligator leather represents the optimal choice for this reference: the natural grain texture dialogues with the brushed finish of the stainless steel case, and the patina developed over time creates aesthetic coherence. Alternatively, vegetable-tanned calf offers an elegant conservative profile. For sporting purposes, rubber or NATO fabric straps provide durability and practicality.

How do you change the strap on the BRWW1-MONO-HER/SCA?

Strap replacement requires a spring bar removal tool or specialised tweezers. Position the watch face-down, insert the spring bar tool into the small lateral slot of the upper lug, apply gentle downward pressure to compress the internal spring, then extract the old strap. Repeat for the lower lug. Insert the new strap, aligning it with the case shoulders and verifying that the spring bars lock completely.

Does the BRWW1-MONO-HER/SCA accept compatible aftermarket straps?

Yes, the BRWW1-MONO-HER/SCA accepts aftermarket straps provided they feature 18.00 mm lugs. Artisanal quality straps – in alligator, calf, shell cordovan – are fully compatible and often offer superior customisation compared to official Bell & Ross models. Verify that the strap has been constructed with precise tolerances to ensure correct fit.

How long does a natural leather strap last on a daily-use watch?

An artisanal quality leather strap, subjected to moderate daily wear, has an average lifespan of 3-5 years. Factors such as ambient humidity, replacement frequency, sun exposure and tanning quality influence longevity. Vegetable-tanned leather and alligator, if properly maintained, develop aesthetic patina during this period. Passants are the primary structural stress points and typically fail first.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only